package com.yikang;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Semaphore;

/**
 * Created by wcd on 2017/1/6.
 */
public class SemaphoreTest {
    private static final int THREAD_COUNT=30;
    private static ExecutorService threadPool= Executors.newFixedThreadPool(THREAD_COUNT);
    private static Semaphore s=new Semaphore(10);
    public static void main(String args[]){
        for(int i=0;i<THREAD_COUNT;i++){
            threadPool.execute(new Runnable() {
                @Override
                public void run() {
                    try {
                        s.acquire();
                        System.out.println("sava data");
                        s.release();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            });
        }
        threadPool.shutdown();
    }
}
